backend/restservice/src/main/java/com/plannaplan/TestController.java

package com.plannaplan;

import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@CrossOrigin
public class TestController {
    @GetMapping("/")
    public String xd() {
        return "<h1>xd</h1>";
    }
}